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// Copyright 2014 Emil Velikov
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// - Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <windows.h>
#include "wcore_error.h"
#include "wgl_config.h"
#include "wgl_platform.h"
#include "wgl_window.h"
bool
wgl_window_destroy(struct wcore_window *wc_self)
{
struct wgl_window *self = wgl_window(wc_self);
assert(self);
assert(self->hWnd);
self->created = false;
ShowWindow(self->hWnd, SW_HIDE);
return true;
}
bool
wgl_window_priv_destroy(struct wcore_window *wc_self)
{
struct wgl_window *self = wgl_window(wc_self);
bool ok = true;
if (!self)
return true;
if (self->hWnd) {
if (self->hDC) {
ok &= ReleaseDC(self->hWnd, self->hDC);
}
ok &= DestroyWindow(self->hWnd);
}
ok &= wcore_window_teardown(wc_self);
free(self);
return ok;
}
struct wcore_window*
wgl_window_create(struct wcore_platform *wc_plat,
struct wcore_config *wc_config,
int32_t width,
int32_t height)
{
struct wgl_config *config = wgl_config(wc_config);
bool ok;
assert(config->window);
// Currently we do not allow multiple windows per config.
// Neither piglit nor the waffle examples do that yet, so just
// return NULL in case that ever changes.
assert(!config->window->created);
if (config->window->created)
return NULL;
config->window->created = true;
ok = wgl_window_resize(&config->window->wcore, width, height);
if (!ok)
return NULL;
return &config->window->wcore;
}
struct wcore_window*
wgl_window_priv_create(struct wcore_platform *wc_plat,
struct wcore_config *wc_config,
int32_t width,
int32_t height)
{
struct wgl_platform *plat = wgl_platform(wc_plat);
struct wgl_window *self;
bool ok;
RECT rect;
self = wcore_calloc(sizeof(*self));
if (!self)
return NULL;
ok = wcore_window_init(&self->wcore, wc_config);
if (!ok)
goto error;
rect.left = 0;
rect.top = 0;
rect.right = rect.left + width;
rect.bottom = rect.top + height;
ok = AdjustWindowRect(&rect, WS_POPUPWINDOW, FALSE);
if (!ok)
goto error;
self->hWnd = CreateWindow(plat->class_name, NULL, WS_POPUPWINDOW,
0, 0,
rect.right - rect.left, rect.bottom - rect.top,
NULL, NULL, NULL, NULL);
if (!self->hWnd)
goto error;
#ifndef NDEBUG
// Verify the client area size matches the required size.
GetClientRect(self->hWnd, &rect);
assert(rect.left == 0);
assert(rect.top == 0);
assert(rect.right - rect.left == width);
assert(rect.bottom - rect.top == height);
#endif
self->hDC = GetDC(self->hWnd);
if (!self->hDC)
goto error;
return &self->wcore;
error:
wgl_window_priv_destroy(&self->wcore);
return NULL;
}
bool
wgl_window_show(struct wcore_window *wc_self)
{
struct wgl_window *self = wgl_window(wc_self);
assert(self);
assert(self->hWnd);
// If the window was previously hidden the function returns zero,
// and non-zero otherwise.
// XXX: Use SW_SHOW or SW_SHOWDEFAULT, SW_SHOWNORMAL ?
ShowWindow(self->hWnd, SW_SHOW);
return true;
}
bool
wgl_window_resize(struct wcore_window *wc_self,
int32_t width, int32_t height)
{
struct wgl_window *self = wgl_window(wc_self);
RECT rect;
bool ok;
assert(self);
assert(self->hWnd);
rect.left = 0;
rect.top = 0;
rect.right = rect.left + width;
rect.bottom = rect.top + height;
ok = AdjustWindowRect(&rect, WS_POPUPWINDOW, FALSE);
if (!ok)
return false;
ok = SetWindowPos(self->hWnd, 0, 0, 0,
rect.right - rect.left,
rect.bottom - rect.top,
SWP_NOMOVE|SWP_NOZORDER|SWP_NOACTIVATE);
#ifndef NDEBUG
// Verify the client area size matches the required size.
GetClientRect(self->hWnd, &rect);
assert(rect.left == 0);
assert(rect.top == 0);
assert(rect.right - rect.left == width);
assert(rect.bottom - rect.top == height);
#endif
return ok;
}
bool
wgl_window_swap_buffers(struct wcore_window *wc_self)
{
struct wgl_window *self = wgl_window(wc_self);
assert(self);
assert(self->hDC);
return SwapBuffers(self->hDC);
}
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